The document discusses strategies for scaling synchronous web applications. It recommends starting simply without trying to solve problems prematurely, using tools to identify bottlenecks, prioritizing quick fixes over over-ambitious reworks, and creating abstractions that allow components to be reused and adapted as needs change. The document is about scaling strategies and includes usage metrics for a 3 year old company with 45 employees.

1. confidential scaling the synchronous web October 10 th , 2008

2. scaling the synchronous web October 10 th , 2008 confidential Elaine Wherry Co-Founder, VP Products Paul Sowden Lead Software Engineer

4. www +

5. 2 3 4 5 6 7

7. traditional versus nontraditional... traditional versus nontraditional...

8. asynchronous versus synchronous ...

10. asynchronous versus synchronous ... page views versus persistence ... content versus application ... database versus memory ...

12. #1: simpler is better

13. protocol plugins msn jabber yahoo oscar (aim) gaim 1.5.0 ui & core & services

14. yahoo gaim 1.5.0 core & services protocol plugins msn jabber yahoo oscar (aim) meebo network layer

17. confidential

20. #2 know your bottlenecks confidential

26. #3: quick fix or homerun! confidential

27. kill –9 <pid>

32. confidential

33. confidential

35. cgi fastcgi mod_meebo

37. #4: useful abstractions

40. meebo util.js ajax ui dlg menu button element IMDlg BuddyListDlg EventMgr NetworkMgr

41. meeboApp meeboApp meeboApp meebo ui util ajax PubSub Buddy BuddyList Account EventMgr NetworkMgr dlg menu button element iPhone iPhone Firefox

45. thank you confidential